Frame for a respiratory mask



FIG. 1 is a front perspective view of a frame for a respiratory mask according to our new ornamental design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof, with the right side view being a mirror image thereof; and,

FIG. 7 is a rear perspective view thereof.

The broken line showing immediately adjacent the shaded areas is included for the purpose of illustrating portions of the article excluded from the claim, with the lines themselves and the areas within forming no part of the claimed design. 

CLAIM The ornamental design for a frame for a respiratory mask, as shown and described. 